Solve x^2+5x+6=0
Please help

Answer:

\( \sqrt{30} \)

Answer:

2.5 Tons to lb

1 ton = 2,000 lb

2.5 tons x 2000 lb = 5,000 lb

In general, if a paired difference experiment is conducted, it typically involves comparing two sets of measurements or observations that are paired in some way, such as before-and-after measurements on the same individuals or measurements on paired individuals in a study.

I'm sorry, but the given information is incomplete as there are no results shown for the paired difference experiment. Without this information, I cannot provide a specific answer to the question. However, to test the hypothesis of interest, a paired t-test is commonly used, which calculates the mean difference between the paired observations and compares it to a hypothesized value using a t-distribution. The p-value of the test is then calculated based on the observed t-statistic and the degrees of freedom, and it represents the probability of obtaining a test statistic as extreme or more extreme than the observed value if the null hypothesis were true. If the p-value is smaller than the chosen level of significance (typically 0.05), the null hypothesis is rejected, and it is concluded that there is evidence in favor of the alternative hypothesis. Conversely, if the p-value is larger than the significance level, the null hypothesis cannot be rejected, and the conclusion is that there is not enough evidence to support the alternative hypothesis.

Learn more about null hypothesis here: brainly.com/question/30821298

#SPJ11

Answer:

A pair of opposite angles formed by two intersecting lines (option C)

Step-by-step explanation:

A function assigns the values. The correct options are A, C, and D.

What does a math function mean?

An expression, rule, or law in mathematics that specifies the relationship between an independent variable and a dependent variable (the dependent variable).

The statements that are true about the two functions g(x)=(−1/4)x² and f(x)=x² are,

A. g is wider than f.

C. f and g have the same vertex.

D. f and g have the same axis of symmetry.

Hence, the correct options are A, C, and D.

Learn more about function

brainly.com/question/12431044

#SPJ1

The complete question is -

Select all the statements about the graphs of functions g(x) = –14 x² and f(x) = 2x that are true.

A. f and g have the same x-intercept(s).

B. f and g have the same end behavior.

C. f and g have the same domain.

D. f and g have symmetry about the origin.

E. f and g have the same y-intercept.

Research with larger sample sizes may be necessary to determine the true impact of industrial waste on fish mercury levels.

Based on the results of the correctly conducted test of significance, the researcher can conclude that there is no statistically significant difference in the average mercury level between the two groups of fish. Therefore, it is likely that industrial waste does not cause higher levels of mercury in fish. However, it is important to note that this conclusion is based on the assumption that the test was conducted correctly and that the sample size was sufficient to detect a significant difference if it existed. The researcher can conclude that the sample size may be too small to detect a statistically significant difference in average mercury levels between fish caught near industrial sites and those caught away from industrial sites.

Learn more about mercury here

https://brainly.com/question/879

#SPJ11

Step-by-step explanation:

2×3=6 I think it's like this

To find the area Edward will pave for the 150 square feet driveway, we'll use the terms given: area, apprentice, divide, and 4.

Let x be the area Edward will pave, and y be the area his apprentice will pave. We know that the total area of the driveway is 150 square feet. Therefore, x + y = 150.

The problem states that the area Edward paved divided by the area his apprentice paves equals 4, which can be written as x/y = 4. To solve this equation, we can multiply both sides by y, giving us x = 4y.

Now we have two equations:
1) x + y = 150
2) x = 4y

Substitute equation 2 into equation 1 to solve for y:
4y + y = 150

Combine like terms:
5y = 150

Divide by 5:
y = 30

Now that we have the area the apprentice will pave (y = 30), we can find the area Edward will pave (x) using equation 2:
x = 4y
x = 4 * 30
x = 120

So, the area Edward will pave is 120 square feet.

Learn more about driveway at https://brainly.com/question/15514113

#SPJ11

Answer:

Step-by-step explanation: have a good day and/or nightyou are loved by lots.

Sin(θ) is equal to the y-coordinate, which is 39/89.

We have,

In trigonometry, the unit circle is a circle with a radius of 1 centered at the origin (0, 0) in a coordinate plane.

The unit circle is commonly used to define trigonometric functions such as sine, cosine, and tangent.

When an angle θ is in the standard position (i.e., its vertex is at the origin and its initial side lies along the positive x-axis), the terminal side of the angle intersects the unit circle at a specific point (x, y) on the circle.

The x-coordinate of the point represents the cosine value of the angle, and the y-coordinate represents the sine value of the angle.

In this problem,

We are given the coordinates (79/89, 39/89) of the point where the terminal side of angle θ intersects the unit circle.

The y-coordinate, which is 39/89, represents the sine value of the angle θ. So, sin(θ) is equal to 39/89.

Therefore,

Sin(θ) is equal to the y-coordinate, which is 39/89.

Learn more about circle here:

https://brainly.com/question/11833983

#SPJ1

Therefore, the only claim that the interval would tend to refute is option E: The population mean is less than 125.

Based on the 90% confidence interval of 135 to 160, we can conclude that the population mean is likely to be within this interval with a 90% degree of confidence.

A. The claim that the population mean is more than 110 is not refuted by the confidence interval since the lower limit of the interval is above 110.

B. The claim that the population mean is less than 150 is not refuted by the confidence interval since the upper limit of the interval is above 150.

C. The claim that the population mean is between 140 and 150 is not refuted by the confidence interval since both values are within the interval.

D. The claim that the population mean is more than 140 is not refuted by the confidence interval since the lower limit of the interval is above 140.

E. The claim that the population mean is less than 125 is refuted by the confidence interval since the lower limit of the interval is above 125.

To know more about confidence interval,

https://brainly.com/question/27375978

#SPJ11

Yes, it is possible to graph the tangent line on an Excel graph. You can do this by following the steps below:

Step 1: Create a scatter plot using the given data

Step 2: Add a trendline by selecting the scatter plot and right-clicking on it. Select the “Add Trendline” option.

Step 3: In the “Trendline Options” tab, choose “Linear” as the trendline type.

Step 4: Check the “Display equation on chart” and “Display R-squared value on chart” boxes.

Step 5: Click on the “Close” button.

Step 6: Click on the trendline to select it. Right-click on it and select “Format Trendline” from the drop-down menu.

Step 7: In the “Format Trendline” window, select the “Options” tab and check the “Display equation on chart” and “Display R-squared value on chart” boxes.

Step8: Close the “Format Trendline” window. Step 9: You can use the equation of the line to calculate the slope of the tangent line at any point on the graph.

To know more about Excel visit:

https://brainly.com/question/32962933

#SPJ11

Answer:

C. 640π cubic units

Answer:

time = 70 minutes

Answer:

25 quarters, 5 half dollars

Step-by-step explanation:

let a = the number of half dollars in the jar

and b = the number of quarters

a + b = 30

0.5a + 0.25b = 8.75

multiply the second equation by -2 to get

-a - 0.5b = -17.5

Now add the new equation and the first to eliminate h

a + b = 30

-a - 0.5b = -17.5

----------------------------

0.5b = 12.5

b = 25

There are 25 quarters, so there must be 5 half dollars

Answer:

Step-by-step explanation:

Let half dollars be d and quarters be q

d + q = 30 thus, q = 30 - d

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

0.5d + 0.25q = 8.75 substitute for q:

0.5d + 0.25(30 - d) = 8.75

0.5d + 7.5 - 0.25d = 8.75

0.25d = 1.25

d = 5 so there are 5 half dollars in the jar

Therefore, there are 30 - 5 = 25 quarters in the jar

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Check:

25 x 0.25 = 6.25

5 x 0.5 = 2.5

-----------------

Total . . 8.75 Correct

Answer:

Rahim is 14 and his father is 42.

Step-by-step explanation:

Let F be Rahim's father's age and R is Rahim's age.

We learn that:

F = 3R  [Rahim's father's age is 3 times as old as him]

and

F + R = 56  [their sum is 56]

----

We have 2 equations and two unknowns, so we should be able to find the answers.

Rearrange the second equation to:  F = 56 - R

The use that definition of F in the first equation:

F = 3R

(56-R) = 3R

Then we can find R:

56-R = 3R

4R = 56

R = 14

Since R=14 and F + R = 56,

F + R = 56

F + 14 = 56

F = 42

Check

Does F=3R?

42 = 3(14)?  YES

Does F + R = 56?

42 + 14 = 56?  YES

Rahim is 14 and his father is 42.

ANSWER

372 grams

EXPLANATION

The half life of the substance is 11 days.

We want to find how much will be left after starting with 1488 grams for 22 days.

To do that, apply the formula for half life:

where N = amount of substance left

N0 = initial amount of substance

t = amount of time

t1/2 = hlaf life

Therefore, for the given substance, the amount that will be left after 22 days is:

Answer:

$3

Step-by-step explanation:

All you have to do is divide 6 by 2  because 50%  is also equal to 1/2

Answer:

B

Step-by-step explanation:

16 times means multiply the expression by 16

The new coordinate of point A(6,3) after translating two units down and four units to the right will be A'(10,1) so none of the given options is correct.

Transformation is rearranging a graph by a given rule it could be either increment of coordinate or decrement or reflection.

Reflection is a mirror image of a graph about any axis.

If we reflect any graph about y = x then the coordinate will interchange it that (x,y) → (y,x).

As per the given coordinate,

A(6,3)

2 units down thus,

y = 3 - 2 = 1

4 units right thus,

x = 6 + 4 = 10

Thus, the new coordinate will be A'(10,1)

Hence "The new coordinate of point A(6,3) after translating two units down and four units to the right will be A'(10,1)".

To learn more about the transformation of graphs,

brainly.com/question/3099136

#SPJ1

Answer:

2/7 × 2/7 ×2/7 is equivalent

From the question, the sum of each of the geometric sequence are;

1)  31 3/4

2) 340

3) 11/16

4) -6, 12, -24

We have that;

Sn = a(1 -\(r^n\))/1 - r

Sn = 16(1 \(- (1/2)^7\))1 - 1/2

Sn = 16(1 - 1/128)/1/2

Sn = 16(127/128) * 2

Sn = 31 3/4

2) Un = a\(r^n\) -1

256 = \(4(4)^n-1\)

64 =\(4^n-1\)

\(4^3 = 4^n-1\)

n = 4

Sn= \(4(4^4 - 1)\)/4 - 1

Sn = 340

3) Since we have a5 then n = 5

Sn = 1(1 - (\(-1/2)^5\))/1 -(-1/2)

Sn = 33/32 * 2/3

= 11/16

4) 30= a(1 -\((-2)^4\))/1 - (-2)

30 = a(-15)/3

30 = -5a

a = 30/-5

a = -6

Then the first three terms are;

-6, 12, -24

Learn more about geometric sequence:https://brainly.com/question/27852674

#SPJ1

Answer:

n=−5

Step-by-step explanation:

0.6(10n+25)=10+5n

Step 1: Simplify both sides of the equation.

0.6(10n+25)=10+5n

(0.6)(10n)+(0.6)(25)=10+5n(Distribute)

6n+15=10+5n

6n+15=5n+10

Step 2: Subtract 5n from both sides.

6n+15−5n=5n+10−5n

n+15=10

Step 3: Subtract 15 from both sides.

n+15−15=10−15

n=−5

Answer:

A

Step-by-step explanation:

inverse means flipping the signs and the numbers of the function

Answer: x - 10/5 = y

Based on the type I error, if a hypothesis test leads to the probability of a type I error decreasing, then the a. probability of incorrectly accepting the null hypothesis decreases.

A type I error refers to when we are are engaged in a hypothesis test and end up rejecting the Null hypothesis even though it is true.

If we are in hypothesis tests and the probability of a type 1 error decreases, then it means that the probability of us correctly rejecting the null hypothesis when it is false increases.

It also means that the probability of us correctly accepting the null hypothesis when it is true increases as well.

This can further be said as the probability of us accepting the null hypothsis when it is false, decreases. There are therefore less chances of us incorrectly accepting the null hypothesis.

Options for this question include:

Find out more on type 1 errors at https://brainly.com/question/14806482

#SPJ1

Answer:

$78.84

Step-by-step explanation:

$26.28 multiplied by 3 is $78.84

The area of the kite is \(66 \ cm^2\).

To find the area of a kite, you can use the formula: Area = \(\frac{(diagonal \ 1 \times diagonal \ 2)}{2}\)

In this case, the measurements given are \(6\) cm, \(1\) cm, and \(11\) cm. However, it is unclear which measurements correspond to the diagonals of the kite.

If we assume that the 6 cm and 11 cm measurements are the diagonals, we can calculate the area as follows:

Area = \(\frac{6 \times 11 }{2}\)

= \(66\) cm²

If the \(1\) cm measurement is one of the diagonals, and the other diagonal is unknown, it is not possible to calculate the area accurately without the measurement of the other diagonal. Without knowledge of the lengths of both diagonals of the kite, it is not possible to determine the exact area as it depends on the specific dimensions.

Therefore, the area of the kite is \(66 \ cm^2\).

For more such questions on area:

https://brainly.com/question/26403859

#SPJ8